12 Utility Patents
#4,159 in Yokohama
#69,852 in Japan
#327,802 in the World
Forward Citations = 267
Company Filing History:
Nippon Oil Company
Nippon Petrochemicals Company, Limited

4. 1 out of 832,627 patents
Other
5. 1 out of 1
Polymer Processing Research
where one patent can have more than one assignee
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